There are six periods in each working day of a school. Find the number of ways in which 5 subjects can be arranged if each subject is allowed at least one period and no period remains vacant.

There are six periods in each working day of the school. In how many ways can one arrange 5 subjects such that each subject is allowed at least one period?

There are six periods in each working day of the school. In how many ways can one arrange 5 subjects such that each subject is allowed at least one period?

There are six periods in each working day of the school. In how many ways can one arrange 5 subjects such that each subject is allowed at least one period?

There are six periods in each working day of the school.In how many ways can one arrange 5 subjects such that each subject is allowed at least one period?

If there are six periods on each working day of a school, in how many ways can one arrange 5 subjects such that each subject is allotted at least one period ?

IF there are 6 periods in each working day of a school , then the number of ways that you can arrange 5 subjects the working day is

If there are 5 periods in each working day of a school,then the number of ways that you can arrange 4 subjects during the working day is

If there are 5 perids in each working day of a school , then the number of ways that you can arrage 4 subjects during the working day is

There are p copies each of n different subjects. Find the number of ways in which a nonempty selection can be made from them. Also find the number of ways in which at least one copy of each subject is selected.